/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ms.bus.control;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import ms.bus.util.Constant;
import ms.dal.dao.UserDao;
import ms.dal.dto.Users;

/**
 *
 * @author minh
 */
public class Controller extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String action = request.getParameter(Constant.WEB_ACTION);
            String urlDisPatcher = "";
            if (action.equals(Constant.PAGE_LOGIN_BT_LOGIN)) {
                String username = request.getParameter(Constant.PAGE_LOGIN_TXT_USERNAME);
                String password = request.getParameter(Constant.PAGE_LOGIN_TXT_PASSWORD);

                UserDao userDao = new UserDao();
                Users authenUser = userDao.getAuthenticateAccount(username, password);
                if (authenUser != null) {
                    HttpSession session = request.getSession(true);
                    session.setAttribute(Constant.WEB_SESSION_ATT_USER, authenUser);
                    urlDisPatcher = "welcome.jsp";
                }
            }
            RequestDispatcher rd = request.getRequestDispatcher(urlDisPatcher);
            rd.forward(request, response);

        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
